Gelli Colliery roof fall, 1903

Two repairers ripping a road at Gelli Colliery were buried on 23 April 1903 when a great rock between two smooth slips fell and crushed out their new timbers.

Date23 April 1903
MineGelli Colliery
RegionRhondda Cynon Taf
TypeCollapse / Roof Fall
Fatalities2 (Two killed: Richard Williams and John Davies.)
Context During active mining

Cause

A large rock fell from between two smooth slips in the roof while the men were barring down a stone during road repairs.

What happened

On 23 April 1903 Richard Williams, 56, and his assistant John Davies were repairing and ripping a road in the Two Feet Nine seam at Gelli Colliery, Rhondda. They had put in two pairs of timber and were barring down a stone when a rock about 13 feet by 9 feet, and from 2 to 6 feet thick, fell from between two smooth slips. It crushed out the new timbers and two props and buried both men.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

Related terminology

Mining terms this disaster is structurally linked to, with the nature of the relationship.

Sources

  1. (secondary) Mining fatalities, 1903 - Welsh Coal Mines — Welsh Coal Mines
  2. (secondary) Accident record: Richard Williams, Gelli, 1903 — Northern Mine Research Society
  3. (secondary) Accident record: John Davies, Gelli, 1903 — Northern Mine Research Society

Record created: 8 October 2026 · Last researched: 8 October 2026

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